Question 1

What is a producer?

Accepted Answer

A producer is an organism that makes its own food using sunlight, such as plants and algae.

Question 2

What is a consumer?

Accepted Answer

A consumer is an organism that gets energy by eating other organisms.

Question 3

What is a decomposer?

Accepted Answer

A decomposer breaks down dead organisms and returns nutrients to the soil, such as fungi and bacteria.

Question 4

In which direction does energy flow in a food chain?

Accepted Answer

Energy flows from producers to primary consumers, then to secondary consumers, and so on up the chain.

Question 5

What percentage of energy is transferred from one trophic level to the next?

Accepted Answer

Only about 10% of energy is transferred from one trophic level to the next; the rest is lost as heat.

Question 6

What happens to a food web if one species is removed?

Accepted Answer

Removing one species can cause a cascade effect, increasing some populations and decreasing others, potentially destabilizing the ecosystem.

Food Chain Answer Key

Prior Knowledge Questions